Selective of anions

Table 2.2 contains the standard Gibbs energies of formation and the standard enthalpies of formation of a selection of anions at 298.15 K (25 °C). [Pg.19]

It has also been shown360 that the selectivity of anion-exchange resins for monovalent anions over polyvalent anions is a function of the distance by which the fixed charges on the resin matrix are separated. The uptake of a divalent anion requires the presence of two closely spaced positive... [Pg.819]

Still another aspect with a bearing on the selectivity of anion binding of real host-guest systems, that is commonly not addressed when using complementarity models, stems from the crude assumption that the association of the anion host with its target guest is the only relevant and accountable process in solution. This implies that all other ingredients of the system are inert and... [Pg.7]

Selection of Anion Exchangers for Detoxification of Dilute-Acid Hydrolysates from Spruce... [Pg.525]

R. B. Barron and J. S. Fritz, Effect of functional group structure and exchange capacity on the selectivity of anion exchangers for divalent anions,/ ChronuUogr 316.2101.1984. [Pg.57]

L. M. Warth and J. S> Fritz, Effect of length of alkyl linkage on selectivity of anion exchange resins,/ Chromaiogr. Sci, 26,630,1988. [Pg.57]

Male K, Luong J, Gibbs B and Konishi Y 1993 An improved FIA biosensor for the determination of aspartame Appl. Biochem. Biotechnol. 38 189-201 Martin G and Meyerhoff M 1986 Membrane-dialyzer injection loop for enhancing the selectivity of anion-responsive liquid-membrane electrode in flow systems Anal. Chim. Acta 186 71-80... [Pg.528]

G. B. Martin and M. E. Meyerhoff, Membrane-Dialyzer Injection Loop for Enhancing the Selectivity of Anion-Responsive Liquid-Membrane Electrodes in Flow Systems. Part I. A Sensing System for NOx and Nitrite. Anal. Chim. Acta, 186 (1986) 71. [Pg.470]

II) From the selection of anions and cations above, which compound would you expect to be the most ionic ... [Pg.59]

Shi, M., S. Kou, and X. Yan. 2014. Engineering the electrochemical capacitive properties of graphene sheets in ionic-liquid electrolytes by correct selection of anions. ChemSusChem 7 3053-3062. [Pg.234]

ILs, mainly quaternary ammonium salts with hydrophobic anions, e.g., l-n-octyl-3-methylimidazolium hexafluorophosphate and tetrafluoroborate, are nonvolatile solvents that can be also applied in extraction. The selection of anions decides the IL hy-drophobicity, the formation of a two-phase system with water, the solubility of n.s in water and of water in ILs, and the IL s hydroscopic properties. Up to now, the hydrophobic ILs that form separated phases with water contain potentially dangerous anions, such as PFe and BF4T, which may decompose and produce fluoride ions. ILs are more viscous than typical solvents and may interfere with the transfer of ionic species. New applications for small-scale separations may emerge in the future. [Pg.1177]

Figure 3 A selection of anion-selective ionophores used in liquid membrane ISEs (Adapted from Buhimann P, Pretsch E, and Bakker E (1998) Chemical Reviews 98 1593).

Usually it is the inorganic anion which is the reactive component. Table 12.8 shows 5Gtr for a selection of anions. [Pg.423]

Wong, A. W. Wang, H. Lebrilla, C. B. Selection of anionic dopant for quantifying desialylation reactions with MALDI-FTMS. Anal. Chem. 2000, 72, 1419-1425. [Pg.757]

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